test-suite/tests/streams.test

   1 ;;;; streams.test --- test Guile ice-9 streams module -*- scheme -*-
   2 ;;;;
   3 ;;;; Copyright (C) 2004, 2006 Free Software Foundation, Inc.
   4 ;;;;
   5 ;;;; This library is free software; you can redistribute it and/or
   6 ;;;; modify it under the terms of the GNU Lesser General Public
   7 ;;;; License as published by the Free Software Foundation; either
   8 ;;;; version 3 of the License, or (at your option) any later version.
   9 ;;;;
  10 ;;;; This library is distributed in the hope that it will be useful,
  11 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 ;;;; Lesser General Public License for more details.
  14 ;;;;
  15 ;;;; You should have received a copy of the GNU Lesser General Public
  16 ;;;; License along with this library; if not, write to the Free Software
  17 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18
  19 (define-module (test-suite test-streams)
  20   :use-module (test-suite lib)
  21   :use-module (ice-9 streams))
  22
  23
  24 ;;;
  25 ;;; stream-for-each
  26 ;;;
  27
  28 (with-test-prefix "stream-for-each"
  29
  30   (with-test-prefix "1 streams"
  31
  32     (pass-if "empty"
  33       (let ((lst '()))
  34         (stream-for-each (lambda (x)
  35                            (set! lst (cons x lst)))
  36                          (list->stream '()))
  37         (equal? '() lst)))
  38
  39     (pass-if "123"
  40       (let ((lst '()))
  41         (stream-for-each (lambda (x)
  42                            (set! lst (cons x lst)))
  43                          (list->stream '(1 2 3)))
  44         (equal? '(3 2 1) lst))))
  45
  46   (with-test-prefix "2 streams"
  47
  48     (pass-if "empty empty"
  49       (let ((lst '()))
  50         (stream-for-each (lambda (x y)
  51                            (set! lst (cons* x y lst)))
  52                          (list->stream '())
  53                          (list->stream '()))
  54         (equal? '() lst)))
  55
  56     (pass-if "123 456"
  57       (let ((lst '()))
  58         (stream-for-each (lambda (x y)
  59                            (set! lst (cons* x y lst)))
  60                          (list->stream '(1 2 3))
  61                          (list->stream '(4 5 6)))
  62         (equal? '(3 6 2 5 1 4) lst)))
  63
  64     (pass-if "12 456"
  65       (let ((lst '()))
  66         (stream-for-each (lambda (x y)
  67                            (set! lst (cons* x y lst)))
  68                          (list->stream '(1 2))
  69                          (list->stream '(4 5 6)))
  70         (equal? '(2 5 1 4) lst)))
  71
  72     (pass-if "123 45"
  73       (let ((lst '()))
  74         (stream-for-each (lambda (x y)
  75                            (set! lst (cons* x y lst)))
  76                          (list->stream '(1 2 3))
  77                          (list->stream '(4 5)))
  78         (equal? '(2 5 1 4) lst)))))